224636530 has 16 divisors (see below), whose sum is σ = 404664984. Its totient is φ = 89783680.

The previous prime is 224636513. The next prime is 224636537. The reversal of 224636530 is 35636422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 217002361 + 7634169 = 14731^2 + 2763^2 .

It is a super-2 number, since 2×224636530² = 100923141220881800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 224636492 and 224636501.

It is not an unprimeable number, because it can be changed into a prime (224636537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5550 + ... + 21910.

Almost surely, 2^224636530 is an apocalyptic number.

224636530 is a deficient number, since it is larger than the sum of its proper divisors (180028454).

224636530 is a wasteful number, since it uses less digits than its factorization.

224636530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17741.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 224636530 is about 14987.8794363979. The cubic root of 224636530 is about 607.8925122340.

The spelling of 224636530 in words is "two hundred twenty-four million, six hundred thirty-six thousand, five hundred thirty".